| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| SUSAN E O'DONNELL | Business | 227012191 | ELMHURST | INACTIVE | Verify |
| KATHLEEN ANN O'DWYER | Business | 227008993 | CHICAGO | NOT RENEWED | Verify |
| HEIDI KRISTINA O'HAIR | Business | 227008850 | CHICAGO | NOT RENEWED | Verify |
| MEGAN M O'HALLORAN | Business | 227009032 | TINLEY PARK | NOT RENEWED | Verify |
| BYRON C O'HARA DC | Business | 227011530 | NAPERVILLE | NOT RENEWED | Verify |
| MARCIA O'HARA | Business | 227010753 | NORTHBROOK | ACTIVE | Verify |
| DAWN MICHELE O'KEEFE | Business | 227019613 | GRANVILLE | NOT RENEWED | Verify |
| SAMANTHA I O'KREPKY | Business | 227010933 | OAK PARK | ACTIVE | Verify |
| JESSY LEE O'LEARY | Business | 227003754 | CHICAGO | NOT RENEWED | Verify |
| TERRI LYNN O'LENA | Business | 227003525 | BRADLEY | NOT RENEWED | Verify |
| CHRISTIN O'MALLEY | Business | 227009630 | DOWNERS GROVE | ACTIVE | Verify |
| DEBORAH O'MALLEY | Business | 227008832 | DOWNERS GROVE | ACTIVE | Verify |
| JANICE A O'MALLEY | Business | 227000714 | LAKE VILLA | INACTIVE | Verify |
| APRIL L O'NEAL | Business | 227008800 | SOUTH BELOIT | NOT RENEWED | Verify |
| AGATA O'NEIL | Business | 227003734 | GENEVA | NOT RENEWED | Verify |
| RYLEE A O'NEILL | Business | 227022283 | BELLEVILLE | ACTIVE | Verify |
| MARGARET O'NEILL CURKOV | Business | 227013670 | GLENVIEW | NOT RENEWED | Verify |
| AMBER O'REAR | Business | 227010484 | CHICAGO | NOT RENEWED | Verify |
| PATRICIA ELLYN O'SHAUGHNESSY | Business | 227004505 | NAPERVILLE | ACTIVE | Verify |
| SUSAN C O'SHEA | Business | 227004806 | CHICAGO | NOT RENEWED | Verify |
| JEANETTE MARIE O'YOUNG | Business | 227005607 | TINLEY PARK | NOT RENEWED | Verify |
| ANDREW W C OAK | Business | 227011388 | CARPENTERSVILLE | NOT RENEWED | Verify |
| BETSY LYNN OAKLEY | Business | 227001827 | CHAMPAIGN | NOT RENEWED | Verify |
| HOLLY ROCHELLE OAKLEY | Business | 227011454 | CHARLESTON | INACTIVE | Verify |
| CASWYN NICO OAKS | Business | 227021916 | DECATUR | ACTIVE | Verify |
| JENNY L OAKS | Business | 227010522 | CANTON | ACTIVE | Verify |
| KIMBERLY OAKTREE | Business | 227014321 | CHICAGO | NOT RENEWED | Verify |
| DANIELLE A OATES | Business | 227020744 | ALGONQUIN | ACTIVE | Verify |
| DOROTHY O OBAZEE | Business | 227022303 | CHICAGO | ACTIVE | Verify |
| SEREN D OBERHEIDE | Business | 227010310 | CHICAGO | NOT RENEWED | Verify |
| RACHEL OBERLANDER | Business | 227017229 | CHICAGO | ACTIVE | Verify |
| DENISE E OBERLE | Business | 227008446 | GENESEO | ACTIVE | Verify |
| HELEN MARIE OBERNAGEL | Business | 227003836 | NEW ATHENS | ACTIVE | Verify |
| JOAN HELEN OBERNDORF | Business | 227001178 | CHICAGO | NOT RENEWED | Verify |
| HEATHER OBLAK | Business | 227005647 | CHICAGO | INACTIVE | Verify |
| NATALIA OBODZINSKI | Business | 227023699 | PLAINFIELD | ACTIVE | Verify |
| GRAZYNA OBOZOWIK | Business | 227003092 | CHICAGO | NOT RENEWED | Verify |
| AMY E OBRIEN | Business | 227010976 | LANSING | NOT RENEWED | Verify |
| CHRISTOPHER W OBRIEN | Business | 227016060 | MOUNT PROSPECT | NOT RENEWED | Verify |
| COLLEEN C OBRIEN | Business | 227015493 | PLAINFIELD | NOT RENEWED | Verify |
| LISA V OBRILL | Business | 227002627 | WHEATON | NOT RENEWED | Verify |
| JOANN M OBROCHTA | Business | 227019066 | LAKE VILLA | ACTIVE | Verify |
| LAUREN N OBROCHTA | Business | 227016130 | NAPERVILLE | NOT RENEWED | Verify |
| LISA E OBRYAN | Business | 227011821 | MAHOMET | NOT RENEWED | Verify |
| EDWARD A OBYRTACZ | Business | 227006545 | CHICAGO | NOT RENEWED | Verify |
| JAMES C OCALLAGHAN | Business | 227011540 | OAK FOREST | INACTIVE | Verify |
| NANCY OCAMPO | Business | 227019796 | CHICAGO | NOT RENEWED | Verify |
| YESENIA OCAMPO | Business | 227023660 | WOODRIDGE | ACTIVE | Verify |
| ADRIAN OCHOA | Business | 227005979 | WOOD DALE | NOT RENEWED | Verify |
| ALFREDO OCHOA | Business | 227006627 | LAKE VILLA | NOT RENEWED | Verify |